INDEX OF SPECIES, 562 
Vireosyluia olivacea, 264, 311, 313. 
——, skull of, 264. 
Wagtail, Yellow, 290. 
, skull of Pied, 289. 
Weka Rail, 302. 
Westwood, J. O., observations on the Uraniide, a 
family of Lepidopterous insects, with a synop- 
sis of the family and a monograph of Coronidia, 

one of the genera of which it is composed, 
507. 
Whale, smaller ziphioid, 416. 
Winchat, skull of, 289. 

Qo 
Xestoleberis depressa, 380, 400, 409. 
Yellow-hammer, skull of, 269. 
Ziphioid Whales, a further contribution to the know- 
ledge of the existing, by W. H. Flower, 415. 
Ziphius cavirostris, 419, 425, 429. 
—— layardi, 416. 
—— sechellensis, 416. 
—— (Dolichodon) layardi, 416. 
Zygena malleus, 439, 440. 
—— ——, dorsal fin of, 489, 482. 
, pectoral fin of, 440. 
—— ——.,, ventral fin of, 440. 

END OF VOLUME xX. 

PRINTED BY TAYLOR AND FRANCIS, RED LION COURT, FLEET STREET. 
